Leonhard voepahl and herrmann pohl



(No Model.)

L. VORPAHL & H. POHL.

Album Clasp.

No. 233,174. Patented Oct. 12, I880.

-PETERS, PHOTO-UTHOGRAPHER, wAsmNsTOu, n c.

UNITED STATES LEONHARD VORPAHL AND HEERMANN POHL, OF BERLIN, GERMANY ASSIGNORS TO KOCH, SONS 85 (30., OF NEW YORK, N. Y.

ALBUM-CLASP.

SPECIFICATION formingpart of Letters Patent No. 233,174, dated October 12, 1880.

Application filed June 18, 1880. (No model.)

To all u'hom 1t may concern:

Be it known that we, LEONHARD VORPAHL and HERRMANN POHL, of Berlin, in the Kingdom of Prussia, German Empire, have invented an Improvement in AlbumOlasps, of which the following is a specification.

The object of this invention is to allow the clasp to yield slightly in case the book becomes thicker by the addition of pictures in the album, and to adapt the same clasp to books of difi'erent thicknesses.

In the drawings, Figure 1 is a section of the clasp at the line 00 w of Fig. 2, and Fig. 2 is a section at the line y y of Fig. l.

The clip a is made of a piece of sheet metal, as usual, and it is to be riveted to the cover of the book.

The tube b is fastened to the clip a, and forms a hinge for the wire loop 0, the sides of which are parallel and enter into the box 0, where they are provided with projecting toepieces Within the box 6 there are suitable springs acting against these toes i.

We prefer and use the volute springs f, the inner ends of which enter the slots in the studs h, and the outer ends pass beneath or behind the toes t.

The box is preferably made with a cover, so as to inclose the springs, and this cover is removed in Fig. 1.

At the opposite side of the box e the bow 1, also preferably made of wire, projects, and it is adapted to catch behind the trough-shaped projection 12, that is upon the edge of the clippiece m, the same being similar to the clippiece a, and being attached to the edge of the other album or book cover.

It will now be understood that the parts 0, e, and 1 swing upon the tube 1), and that the bow l is passed over the projection n and makes a very firm attachment, and that when any strain is applied to the bow 1 that is greater than the strength of the springs the said springs will yield and allow the parts of the loop 0 to draw along within the box 6, and thus increase the distance between the hinge b and how 1, so as to accommodate different thicknesses of books or more or less pictures in the album.

We claim as our invention In combination with the clip-plates a m and loop 0, the box 0, springsf, and bow l, the ends of the loop 0 adapted to slide within the box 0, and having the projections 43 for the ends of the springs, substantially as set forth.

In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

LEONHARD VORPAHL. HERRMANN POHL.

Witnesses:

BANCROFT C. DAVIS, JOHN C. Koon, Jr. 

